废钢铁加工是金属循环再生不可缺少的重要环节,也是改变再生行业从粗放经营转向集约经营的必由之路。在工业发达的国家,废钢铁加工是一家独立的产业,被称为废钢工业。我国的废钢铁加工,至70年代以前,主要是由钢厂等使用单位自行加工;70年代以后,随着冶金工业对废钢铁的需求量增加,使遍布全国城乡的废钢铁资源集中到冶金企业独家加工已难以承受,于是物资和商业部门的回收企业开始建立加工厂,逐步形成工贸结合的加工 Scrap iron and steel processing is an indispensable part of the recycling of metals is an important link, but also change the renewable industry from extensive management to the only way to operate intensively. In industrially developed countries, scrap iron processing is an independent industry, known as the scrap industry. Since the 1970s, as the demand for scrap steel in the metallurgical industry has increased, the scrap steel resources in urban and rural areas across the country have been concentrated in the metallurgical enterprises Exclusive processing has been unbearable, so material and commercial sector recycling companies began to establish processing plants, and gradually form a combination of industry and trade processing